Jacob j



(No Model.)

J. J. LINDAUER.

BUTTON 0R STUD.

Patented July 28, .1885.

Trice".

ATnNT JACOB J. LINDAUER, OF NEW YORK, N. Y.

vBUTTON OR STUD.

SPECIFICATION forming part of Letters Patel-1t No. 323,167, dated July28, 1885.

Application filed May 6. 1885. (No model.)

To ally/kont t may concern:

Be it known that I, JACOB J. LTNDAUER, of New York, in the county andState of New York, have invented a new and useful Inl` provement inDetachable Buttons or Studs, of

which the following is a specification.

I will describe a button or stud embodying my improvement, and thenpoint out the various features in a claim.

In the accompanying drawings, Figure 1 is a centraltransverse section ofa button or stud embodying my improvement. Fig. 2 isa back view of thesame. Fig. 3 is a central transverse section of a button or stud ofmodiiied 1 5 form embodying the said improvement.

Similar letters of reference designate corresponding parts in all thegures.

Referring first to Figs. l and 2, A designates the headofa button orstud. This head may be 2O made wholly of metal or of a metal rim and acenter of stone or analogous material.

To the back of the head A two bars, B, are secured in such manner thatthey may be swung into a position side by side, as illustrated in dottedoutline, or aposition in line, as-

illustrated in full lines in Fig. l. Thus they are enabled to be easilyinserted in button-holes, and after their insertion to be extendedacross the same, so that the button or stud will be 3o securely attachedto the articles containing the button holes. The bars B are J-shaped.

Their bent portions b extend through spaces or slots between the back ofthe head and bridge pieces a affixed to the back of the stud. At one endof the bent portioi s b of the bars B are short approximately straightportions b', and at the other end of the bent portions b are longstraight portions bg. The long straight portions b2 of the bars, bycoming in contact when the bars are swung in one drection,limit theswinging of the bars in one direction,and the short straight portions b,by coming in contact with the back of the head A, limit the swinging ofthe bars in the other direction. The bent or curved portions b of thebars are provid ed with intermeshin g teeth, and theteeth of one engagewith a rack-bar, C, which slides in a bearing, c, provided' on the backofthe head A. By moving the slider-bar G out or in the bars B may beswunginto the positions described. The sliderhar O has a projectiomd, atone end,whereby it can be conveniently manipulated. The slider-bar C maybe kept so tight in its bearings that it will not be liable toaccidental displacement, or it may have a catch combined withit topreclude such mishap.

The button or stud shown in Fig. 3 is like the one previouslydescribed,except that instead of the J-shaped bars B, l use bars Bhaving sec tor-sh apedends bprovided with intermeshing teeth,and mountedon-pivotpins b", connected to the head A. The teeth ofone ofthesesectorshaped bars B engage with teeth on a slider'- bar C.

WVhat l claim as myinvention, and desire to secure by Letters Patent, is

In a button or stud, the combinatiomwith a head, of swinging bars havingintermeshing teeth,and a slider-bar provided with teeth engaging withthe teeth of. one of the swinging bars, substantially as specified.

J. J. LNDAUER.

Vitn csses:

WILLIAM G. LiPsnY, T. J. KEANE.

